Polish coal producer Kompania Weglowa is to cut costs, boost output and strengthen its finances as part of a government restructuring plan to help the company produce a core profit of 2 billion zlotys ($540.42 million) in 2017.

The four top U.S. coal producers were higher Friday for reasons that were unclear.
The movement came as India sold a 10 percent stake in Coal India Ltd. (BOM:533278), the world's largest coal producer, for $3.6 billion Friday. But Coal India...